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Aegisub
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Code Issues Releases Wiki Activity

PNG exporting now works 

Originally committed to SVN as r256.
This commit is contained in:
Rodrigo Braz Monteiro 2006-03-30 00:25:15 +00:00
parent d7d388fb3c
commit 6591c59afd
1 changed files with 75 additions and 12 deletions
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87
core/subtitle_format_prs.cpp
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@ -98,7 +98,7 @@ void PRSSubtitleFormat::WriteFile(wxString filename,wxString encoding) {
AssFile *ass = AssFile::top;
AssDialogue *diag = NULL;
PClip clip1 = script1.AsClip();
PClip clip2 = script1.AsClip();
PClip clip2 = script2.AsClip();
int id = 0;
for (entryIter cur=ass->Line.begin();cur!=ass->Line.end();cur++) {
diag = AssEntry::GetAsDialogue(*cur);
@ -149,13 +149,73 @@ void PRSSubtitleFormat::WriteFile(wxString filename,wxString encoding) {
// Frame 1 should have the image on a BLACK background
// Frame 2 should have the same image on a WHITE background
wxImage PRSSubtitleFormat::CalculateAlpha(const unsigned char* frame1, const unsigned char* frame2, int w, int h, int pitch) {
//// Allocate image data
//unsigned char *data = (unsigned char*) malloc(sizeof(unsigned char)*w*h*4);
//// Pointers
//const unsigned char *src1 = frame1;
//const unsigned char *src2 = frame2;
//unsigned char *dst = data + ((h-1)*w);
//// Process
//int r1,g1,b1,r2,g2,b2;
//int r,g,b,a;
//for (int y=0;y<h;y++) {
// for (int x=0;x<w;x+=4) {
// // Read pixels
// b1 = *(src1++);
// b2 = *(src2++);
// g1 = *(src1++);
// g2 = *(src2++);
// r1 = *(src1++);
// r2 = *(src2++);
// src1++;
// src2++;
// // Calculate new values
// a = 255 + r1 - r2;
// if (a == 0) {
// r = 0;
// g = 0;
// b = 0;
// }
// else {
// r = r1*255 / a;
// g = g1*255 / a;
// b = b1*255 / a;
// }
// // Write to destination
// *(dst++) = b;
// *(dst++) = g;
// *(dst++) = r;
// *(dst++) = a;
// }
// // Roll back dst
// dst -= 2*w;
//}
//// Create the actual image and return it
////return wxImage(w/4,h,data,false);
//wxBitmap bmp ((const char*)data,w/4,h,32);
//wxImage img = bmp.ConvertToImage();
//if (img.HasAlpha()) wxLogMessage(_T("Has alpha"));
//else wxLogMessage(_T("oshit."));
//return img;
// Allocate image data
unsigned char *data = (unsigned char*) malloc(sizeof(unsigned char)*w*h*4);
unsigned char *data = (unsigned char*) malloc(sizeof(unsigned char)*w*h*3);
unsigned char *alpha = (unsigned char*) malloc(sizeof(unsigned char)*w*h);
// Pointers
const unsigned char *src1 = frame1;
const unsigned char *src2 = frame2;
unsigned char *dst = data + ((h-1)*w);
unsigned char *dst = data + ((h-1)*w*3/4);
unsigned char *dsta = alpha + ((h-1)*w/4);
int mina = 255;
int maxa = 0;
// Process
int r1,g1,b1,r2,g2,b2;
@ -186,21 +246,24 @@ wxImage PRSSubtitleFormat::CalculateAlpha(const unsigned char* frame1, const uns
}
// Write to destination
*(dst++) = b;
*(dst++) = g;
*(dst++) = r;
*(dst++) = a;
*(dst++) = g;
*(dst++) = b;
*(dsta++) = a;
if (a > maxa) maxa = a;
if (a < mina) mina = a;
}
// Roll back dst
dst -= 2*w;
dst -= w*3/2;
dsta -= w/2;
}
wxLogMessage(wxString::Format(_T("Min: %i, Max: %i"),mina,maxa));
// Create the actual image and return it
//return wxImage(w/4,h,data,false);
wxBitmap bmp ((const char*)data,w/4,h,32);
wxImage img = bmp.ConvertToImage();
if (img.HasAlpha()) wxLogMessage(_T("Has alpha"));
else wxLogMessage(_T("oshit."));
wxImage img(w/4,h,data,false);
img.SetAlpha(alpha,false);
return img;
}